66255354541 has 12 divisors (see below), whose sum is σ = 66782195284. Its totient is φ = 65732601600.

The previous prime is 66255354511. The next prime is 66255354551. The reversal of 66255354541 is 14545355266.

It can be written as a sum of positive squares in 6 ways, for example, as 9796842441 + 56458512100 = 98979^2 + 237610^2 .

It is not a de Polignac number, because 66255354541 - 2¹³ = 66255346349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66255354491 and 66255354500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66255354511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30658501 + ... + 30660661.

Almost surely, 2^66255354541 is an apocalyptic number.

It is an amenable number.

66255354541 is a deficient number, since it is larger than the sum of its proper divisors (526840743).

66255354541 is a wasteful number, since it uses less digits than its factorization.

66255354541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840 (or 3691 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 46.

The spelling of 66255354541 in words is "sixty-six billion, two hundred fifty-five million, three hundred fifty-four thousand, five hundred forty-one".